This is an Ichiban Kuji The Quintessential Quintuplets∬ -Bride Style- G Prize illustration board featuring the character Nino Nakano. 

This specific board is part of a set of five, each featuring one of the Nakano quintuplets in a white kimono arrangement design. 

The illustration boards are B5 size. 

It is an official product from Bandai Spirits. 

The item was available as a "G Prize" in the Ichiban Kuji lottery released around April 2021 in Japan.